A pure Swift library for extracting text information from pdf files, such as text blocks with coordinates and font information. Also includes a true type font parser for glyph width computation.
Parsing code based on PDFKitten https://github.com/KurtCode/PDFKitten TrueType parser based on http://stevehanov.ca/blog/index.php?id=143
Parsing is done very simply, and returns TextBlocks structs, that can be later indexed by custom code. A simple indexer is provided, assuming single column layout, aggregating words.
var documentIndexer = SimpleDocumentIndexer()
let documentPath = Bundle.main.path(forResource: "Kurt the Cat", ofType: "pdf", inDirectory: nil, forLocalization: nil)
let parser = try! Parser(documentURL: URL(fileURLWithPath: documentPath!), delegate:self, indexer: documentIndexer)
parser.parse()
print( "All Text Blocks Raw dump : \n")
print(documentIndexer.pageIndexes[1]!.textBlocks)
print( "\nWords per lines : \n")
print(documentIndexer.pageIndexes[1]!.allLinesDescription())ViewController in the DemoApp displays UILabel for textblocks. This lets you see if the frames for the textblock returned by the parser is correct.
This code is not ready for production. Use at your own risk. This code is probably way too unoptimized to be used for anything latency-sensitive. It was meant to be easy to understand and correct first and foremost.